CN108365613A - A kind of distribution network electric energy quality abatement equipment controller and its control method - Google Patents
A kind of distribution network electric energy quality abatement equipment controller and its control method Download PDFInfo
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- CN108365613A CN108365613A CN201810378986.4A CN201810378986A CN108365613A CN 108365613 A CN108365613 A CN 108365613A CN 201810378986 A CN201810378986 A CN 201810378986A CN 108365613 A CN108365613 A CN 108365613A
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- 239000003990 capacitor Substances 0.000 claims abstract description 25
- 230000002452 interceptive effect Effects 0.000 claims abstract description 24
- 230000003068 static effect Effects 0.000 claims abstract description 9
- 238000012797 qualification Methods 0.000 claims description 17
- 230000033228 biological regulation Effects 0.000 claims description 5
- 230000006641 stabilisation Effects 0.000 abstract description 4
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- 230000005611 electricity Effects 0.000 description 5
- 230000006872 improvement Effects 0.000 description 3
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- 238000010586 diagram Methods 0.000 description 2
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- 230000010365 information processing Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000005855 radiation Effects 0.000 description 2
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- 230000002457 bidirectional effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000001939 inductive effect Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
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- 238000010248 power generation Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
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Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J3/00—Circuit arrangements for ac mains or ac distribution networks
- H02J3/18—Arrangements for adjusting, eliminating or compensating reactive power in networks
- H02J3/1821—Arrangements for adjusting, eliminating or compensating reactive power in networks using shunt compensators
- H02J3/1835—Arrangements for adjusting, eliminating or compensating reactive power in networks using shunt compensators with stepless control
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J3/00—Circuit arrangements for ac mains or ac distribution networks
- H02J3/12—Circuit arrangements for ac mains or ac distribution networks for adjusting voltage in ac networks by changing a characteristic of the network load
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J3/00—Circuit arrangements for ac mains or ac distribution networks
- H02J3/12—Circuit arrangements for ac mains or ac distribution networks for adjusting voltage in ac networks by changing a characteristic of the network load
- H02J3/16—Circuit arrangements for ac mains or ac distribution networks for adjusting voltage in ac networks by changing a characteristic of the network load by adjustment of reactive power
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J3/00—Circuit arrangements for ac mains or ac distribution networks
- H02J3/18—Arrangements for adjusting, eliminating or compensating reactive power in networks
- H02J3/1821—Arrangements for adjusting, eliminating or compensating reactive power in networks using shunt compensators
- H02J3/1828—Arrangements for adjusting, eliminating or compensating reactive power in networks using shunt compensators with stepwise control, the possibility of switching in or out the entire compensating arrangement not being considered as stepwise control
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K5/00—Casings, cabinets or drawers for electric apparatus
- H05K5/02—Details
- H05K5/0213—Venting apertures; Constructional details thereof
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E40/00—Technologies for an efficient electrical power generation, transmission or distribution
- Y02E40/10—Flexible AC transmission systems [FACTS]
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E40/00—Technologies for an efficient electrical power generation, transmission or distribution
- Y02E40/30—Reactive power compensation
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- Power Engineering (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Supply And Distribution Of Alternating Current (AREA)
- Control Of Electrical Variables (AREA)
Abstract
The present invention relates to power equipment applied technical fields, more particularly, to a kind of distribution network electric energy quality abatement equipment controller and its control method.The present apparatus is connect with static reactive generator and adjustable transformer, including Trackpad interactive module, system, control circuit, state acquisition circuit, power module and external interface module, external interface module, state acquisition circuit, system, control circuit, Trackpad interactive module are sequentially connected electrically, power module is electrically connected with state acquisition circuit, system, control circuit, Trackpad interactive module and external interface module respectively, and static reactive generator and adjustable transformer are electrically connected with external interface module.It is capable of the reactive-load compensation amount of Collaborative Control user side SVG, the excision that puts into operation of capacitor, adjustable transformer gear is adjusted, and is ensured that the voltage of user side maintains normal work area with idle, is reduced line loss, reduce the generation of harmonic wave, maintain line end voltage stabilization.
Description
Technical field
The present invention relates to power equipment applied technical fields, are set more particularly, to a kind of improvement of distribution network electric energy quality
Preparation controller and its control method.
Background technology
Nowadays, with the development of domestic SVG enterprises, SVG costs constantly reduce, the reactive-load compensation for distribution line end
Measure is also from switching capacitance gradually to SVG transition.Simultaneously because the uncertainty of distributed power generation, distribution transmission line of electricity end electricity
The probability that larger fluctuation is given birth in pressure rises, and in power distribution network, there is an urgent need for a kind of controls having both switching capacitance, SVG and voltage regulatory function
Equipment.
Distribution network electric energy quality administers the reactive-load compensation that the measure mainly used is mainly traditional at this stage（Capacitor and reactance
Device）, dynamic passive compensation（SVC and D-STATCOM）, pressure regulator and the DG with Reactive-power control ability（Distributed generation resource）.It passes
Although the Reactive Compensation Mode of system helps to improve voltage and reduces power attenuation, but its capacitive and inductive compensation separation, discrete
It adjusts, frequent movement is easily damaged.Dynamic passive compensation mode, which then realizes, to be continuously adjusted, and response is rapid, can bidirectional modulation, but
Expensive, volume is larger, and maintenance difficulties are big.Pressure regulator is upper with obvious effects in voltage adjusting, but can not solve no-power vacancy and ask
Topic may cause Voltage Instability, increase power attenuation.Distributed generation resource power quality itself is more unstable, it is also difficult to unified
Management and running.
Invention content
The present invention is at least one defect overcome described in the above-mentioned prior art, provides a kind of distribution network electric energy quality improvement
Device controller and its control method are capable of the reactive-load compensation amount of Collaborative Control user side SVG, the excision that puts into operation of capacitor, adjust
Pressure transformer gear is adjusted, and is ensured that the voltage of user side maintains normal work area with idle, is reduced line loss, reduce harmonic wave
Generation, maintain line end voltage stabilization.Simultaneously there is good heat-sinking capability, can long-time stable Effec-tive Function, solution
The problem of background technology of having determined.
In order to solve the above technical problems, the technical solution adopted by the present invention is：A kind of distribution network electric energy quality abatement equipment
Controller, the present apparatus are connect with static reactive generator and adjustable transformer, including Trackpad interactive module, system control electricity
Road, state acquisition circuit, power module and external interface module, the external interface module, state acquisition circuit, system control
Circuit processed, Trackpad interactive module are sequentially connected electrically, the power module respectively with state acquisition circuit, system control electricity
Road, Trackpad interactive module and external interface module electrical connection, static reactive generator and adjustable transformer and external interface mould
Block is electrically connected.
In the present apparatus, acquisition port is used as by external interface module and docks measuring mouth, passes through state acquisition circuit pair
Critical point electric current and voltage carry out data information acquisition, in acquired treated data information transfer to system, control circuit module
Information processing is carried out, and status information is shown that staff, staff passes through Trackpad by Trackpad interactive module
Interactive module can send out control instruction to system, control circuit, so that system, control circuit is controlled and access to the quiet of the present apparatus
Only reacance generator and adjustable transformer bring it about action, solve the problems, such as no-power vacancy to realize, power module is state
Acquisition Circuit, Trackpad interactive module and system, control circuit power supply.It is capable of the reactive-load compensation of Collaborative Control user side SVG
The excision that puts into operation of amount, capacitor, adjustable transformer gear are adjusted, and ensure that the voltage of user side maintains normal work with idle
Area reduces line loss, reduces the generation of harmonic wave, maintains line end voltage stabilization.
Further, the external interface module includes signal input interface, signal output interface and power interface, institute
The signal input interface stated is electrically connected with state acquisition circuit, and the signal output interface is electrically connected with system, control circuit,
The power interface is electrically connected with power module.
Further, the Trackpad interactive module is touch panel, can be with display control information, critical point voltage, nothing
Work(instantaneous value, operator can be configured controller using touch surface version.
Further, further include shell, the Trackpad interactive module, system, control circuit, state acquisition circuit and
Power module is all provided in shell, and the housing forward end is provided with touch panel, power switch and reset key, after the shell
End is provided with power interface, signal input interface and signal output interface and USB interface.USB interface, which can be used for connecting, to be calculated
Machine exports controller operation data.
Further, the case top is equipped with radiating groove, with increasing heat radiation area and can save material.
Further, the housing bottom is equipped with sliding slot guide rail, and dismounting is easy to assembly, convenient for tearing machine cleaning open, safeguarding.
Further, the signal input interface includes three-phase current input port, three-phase voltage input port and spare mouth
And mutually insulated and shape size it is identical.
A kind of control method of distribution network electric energy quality abatement equipment, includes the following steps：
S1：Critical point electric current I, voltage U are measured, critical point reactive power Q is calculated；
S2：Judge whether voltage U is more than upper voltage limit UH, if it is not, S3 is then entered step, if so, whether judging reactive power Q
Less than reactive power upper limit QH, if it is not, then adjustable transformer upshift is depressurized to voltage qualification；If adjustable transformer tap gear
Highest shelves have been adjusted to, and voltage still gets over upper limit UH, then capacitance is cut by force；If voltage still gets over upper limit U at this timeH, SVG no longer carries out idle
Compensation, if so, adjustable transformer upshift is depressurized to voltage qualification, if adjustable transformer tap gear has been adjusted to highest shelves,
And voltage still gets over upper limit UH, then capacitance is cut by force；If voltage still gets over upper limit U at this timeH, SVG no longer carries out reactive-load compensation；
S3：Judge whether voltage U is less than lower voltage limit UL, if it is not, S4 is then entered step, if so, whether judging reactive power Q
More than reactive power upper limit QH, if so, SVG first carries out reactive-load compensation, if critical point reactive power still gets over the upper limit, put into parallel connection
Capacitor group keeps reactive power qualified；If voltage is still below lower limit at this time, adjustable transformer downshift boosts to voltage qualification, if
No, then adjustable transformer downshift boosts to voltage qualification, if tap gear has been adjusted to deep low gear, and voltage is still below lower limit,
SVG carries out reactive-load compensation and supports voltage, if voltage still gets over lower limit, puts into shunt capacitor group by force；
S4：Judge whether reactive power Q is more than reactive power upper limit QH, if so, SVG carries out reactive-load compensation, if still existing
No-power vacancy, then capacitor automatically engage carry out reactive-load compensation；If it is not, then entering step S5；
S5：Judge whether reactive power Q is less than reactive power lower limit QL, if so, SVG stops carrying out reactive-load compensation, if at this time
Reactive power still gets over lower limit, then cuts off shunt capacitor group；If it is not, being then not necessarily to pressure regulation, it is switched to bypass condition automatically.
Compared with prior art, advantageous effect is：The reactive-load compensation of Collaborative Control user side SVG may be implemented in the present apparatus
The excision that puts into operation of amount, capacitor, adjustable transformer gear are adjusted, and ensure that the voltage of user side maintains normal work with idle
Area reduces line loss, reduces the generation of harmonic wave, and line end voltage is made to maintain to stablize.It solves the problems, such as no-power vacancy, avoids electricity
Unstability is pressed, reduces power attenuation, and shelling machine has good heat-sinking capability, it being capable of long-time stable Effec-tive Function.
Description of the drawings
Fig. 1 is overall structure of the present invention；
Fig. 2 is the overall structure diagram of inventive shell；
Fig. 3 is the structural schematic diagram at the back side of the present invention；
Fig. 4 is flow chart of the method for the present invention；
Fig. 5 is present invention block plan in one embodiment.
Specific implementation mode
The attached figures are only used for illustrative purposes and cannot be understood as limitating the patent；It is attached in order to more preferably illustrate the present embodiment
Scheme certain components to have omission, zoom in or out, does not represent the size of actual product；To those skilled in the art,
The omitting of some known structures and their instructions in the attached drawings are understandable.Being given for example only property of position relationship described in attached drawing
Illustrate, should not be understood as the limitation to this patent.
As shown in Figure 1, a kind of distribution network electric energy quality abatement equipment controller, the present apparatus and static reactive generator and tune
Pressure transformer connects, including Trackpad interactive module a, system, control circuit b, state acquisition circuit c, power module d and outside
Interface module e, external interface module e, state acquisition circuit c, system, control circuit b, Trackpad interactive module a are electrically connected successively
Connect, power module d respectively with state acquisition circuit c, system, control circuit b, Trackpad interactive module a and external interface module e
Electrical connection, static reactive generator and adjustable transformer are electrically connected with external interface module e.
In the present apparatus, acquisition port is used as by external interface module e and docks measuring mouth, passes through state acquisition circuit c
Data information acquisition carried out to critical point electric current and voltage, acquired treated data information transfer to system, control circuit b moulds
Information processing is carried out in block, and status information is shown that staff is by touching to staff by Trackpad interactive module a
Control plate interactive module a can send out control instruction to system, control circuit b, so that system, control circuit b is controlled and access to this
The static reactive generator and adjustable transformer of device bring it about action, solve the problems, such as no-power vacancy to realize, power supply mould
Block d is state acquisition circuit c, Trackpad interactive module a and system, control circuit b power supplies.It being capable of Collaborative Control user side SVG
Reactive-load compensation amount, capacitor the excision that puts into operation, adjustable transformer gear adjust, ensure that the voltage of user side is maintained with idle
Area is worked normally, line loss is reduced, reduces the generation of harmonic wave, maintains line end voltage stabilization.
External interface module e includes signal input interface 6, signal output interface 5 and power interface 8, signal input interface 6
It is electrically connected with state acquisition circuit c, signal output interface 5 is electrically connected with system, control circuit b, power interface 8 and power module d
Electrical connection.
In the present embodiment, Trackpad interactive module a is touch panel 2, can be with display control information, critical point voltage, nothing
Work(instantaneous value, operator can be configured controller using touch surface version.
As shown in Figure 2,3, further include shell 1, Trackpad interactive module a, system, control circuit b, state acquisition circuit c and
Power module d is all provided in shell 1, and 1 front end of shell is provided with touch panel 2, power switch 3 and reset key 4, and 1 rear end of shell is set
Power interface 8, signal input interface 6 and signal output interface 5 and USB interface 7 are set.USB interface 7, which can be used for connecting, to be calculated
Machine exports controller operation data.1 top of shell is equipped with radiating groove, with increasing heat radiation area and can save material.1 bottom of shell
Equipped with sliding slot guide rail, dismounting is easy to assembly, convenient for tearing machine cleaning open, safeguarding.
In the present embodiment, signal input interface 6 include three-phase current input port, three-phase voltage input port and spare mouth and
Mutually insulated and shape size is identical.
The present apparatus accesses 220V alternating currents when in use, by power interface 8, turns on the power switch 3, passes through touch panel
2 judge whether communication processor normally starts operation, signal input interface 6, and signal output accesses the logical of other power equipments
Believe wiring.When crash situation occurs in touch panel 2, can be reset by reset key 4.
As shown in figure 4, a kind of control method of distribution network electric energy quality abatement equipment, includes the following steps：
S1：Critical point electric current I, voltage U are measured, critical point reactive power Q is calculated；
S2：Judge whether voltage U is more than upper voltage limit UH, if it is not, S3 is then entered step, if so, whether judging reactive power Q
Less than reactive power upper limit QH, if it is not, then adjustable transformer upshift is depressurized to voltage qualification；If adjustable transformer tap gear
Highest shelves have been adjusted to, and voltage still gets over upper limit UH, then capacitance is cut by force；If voltage still gets over upper limit U at this timeH, SVG no longer carries out idle
Compensation, if so, adjustable transformer upshift is depressurized to voltage qualification, if adjustable transformer tap gear has been adjusted to highest shelves,
And voltage still gets over upper limit UH, then capacitance is cut by force；If voltage still gets over upper limit U at this timeH, SVG no longer carries out reactive-load compensation；
S3：Judge whether voltage U is less than lower voltage limit UL, if it is not, S4 is then entered step, if so, whether judging reactive power Q
More than reactive power upper limit QH, if so, SVG first carries out reactive-load compensation, if critical point reactive power still gets over the upper limit, put into parallel connection
Capacitor group keeps reactive power qualified；If voltage is still below lower limit at this time, adjustable transformer downshift boosts to voltage qualification, if
No, then adjustable transformer downshift boosts to voltage qualification, if tap gear has been adjusted to deep low gear, and voltage is still below lower limit,
SVG carries out reactive-load compensation and supports voltage, if voltage still gets over lower limit, puts into shunt capacitor group by force；
S4：Judge whether reactive power Q is more than reactive power upper limit QH, if so, SVG carries out reactive-load compensation, if still existing
No-power vacancy, then capacitor automatically engage carry out reactive-load compensation；If it is not, then entering step S5；
S5：Judge whether reactive power Q is less than reactive power lower limit QL, if so, SVG stops carrying out reactive-load compensation, if at this time
Reactive power still gets over lower limit, then cuts off shunt capacitor group；If it is not, being then not necessarily to pressure regulation, it is switched to bypass condition automatically.
It will be electric according to fixed voltage and reactive power bound in conjunction with block plan as shown in Figure 5 according to the above method
Pressure-idle plane is divided into 9 regions, illustrates the concrete principle of this method：
1) when critical point Over High-Limit Voltage UH, qualification that critical point is idle（Region 1）, it is qualified that adjustable transformer upshift is depressurized to voltage；If
Adjustable transformer tap gear has been adjusted to highest shelves, and voltage still gets over upper limit UH, then cuts capacitance by force；If at this time voltage still more on
UH is limited, SVG no longer carries out reactive-load compensation.
2) as critical point Over High-Limit Voltage UH, critical point is idle to get over upper limit QH（Region 2）, adjustable transformer upshift be depressurized to voltage
It is qualified；If adjustable transformer tap gear has been adjusted to highest shelves, and voltage still gets over upper limit UH, then cuts capacitance by force；If electric at this time
Pressure still gets over the upper limit UH, SVG and no longer carries out reactive-load compensation.
3) when port voltage qualification, reactive power gets over upper limit QH（Region 3）, SVG carries out reactive-load compensation, if still there are nothings
Work(vacancy, then capacitor automatically engage carry out reactive-load compensation；
4) when port voltage gets over lower limit UL, and reactive power gets over upper limit QH（Region 4）, SVG first carries out reactive-load compensation, if critical point without
Work(power still gets over the upper limit, then putting into shunt capacitor group keeps reactive power qualified；If voltage is still below lower limit at this time, pressure regulation becomes
Depressor downshift boosts to voltage qualification.
5) when critical point, voltage gets over lower limit UL, and reactive power is qualified（Region 5）, adjustable transformer, which downshifts, boosts to voltage conjunction
Lattice；If tap gear has been adjusted to deep low gear, and voltage is still below lower limit, and SVG carries out reactive-load compensation and supports voltage, if voltage is still
More lower limit then puts into shunt capacitor group by force.
6) when critical point, voltage gets over lower limit UL, and reactive power gets over lower limit QL（Region 6）, adjustable transformer downshift boost to voltage
It is qualified；If tap gear has been adjusted to deep low gear, and voltage is still below lower limit, and SVG carries out reactive-load compensation and supports voltage, if voltage
Lower limit is still got over, then puts into shunt capacitor group by force.
7) when critical point voltage qualification, reactive power gets over lower limit QL（Region 7）, SVG stop carry out reactive-load compensation, if at this time without
Work(power still gets over lower limit, then cuts off shunt capacitor group.
8) as critical point Over High-Limit Voltage UH, reactive power gets over lower limit QL, shunt capacitor group is first cut off, if idle work(at this time
Rate still gets over lower limit, and SVG stops carrying out reactive-load compensation；If no capacitance can be cut or capacitor group cuts rear voltage and remains above the upper limit,
It then upshifts again and is depressurized to voltage qualification.
9) when critical point voltage, idle in acceptability limit（Region 9）Between when, be not necessarily to pressure regulation, be switched to bypass condition automatically.
Obviously, the above embodiment of the present invention be only to clearly illustrate example of the present invention, and not be pair
The restriction of embodiments of the present invention.For those of ordinary skill in the art, may be used also on the basis of the above description
To make other variations or changes in different ways.There is no necessity and possibility to exhaust all the enbodiments.It is all this
All any modification, equivalent and improvement etc., should be included in the claims in the present invention made by within the spirit and principle of invention
Protection domain within.
Claims (8)
1. a kind of distribution network electric energy quality abatement equipment controller, the present apparatus connects with static reactive generator and adjustable transformer
It connects, which is characterized in that including Trackpad interactive module（a）, system, control circuit（b）, state acquisition circuit（c）, power module
（d）And external interface module（e）, the external interface module（e）, state acquisition circuit（c）, system, control circuit（b）, touch
Control plate interactive module（a）It is sequentially connected electrically, the power module（d）Respectively with state acquisition circuit（c）, system, control circuit
（b）, Trackpad interactive module（a）And external interface module（e）Electrical connection, static reactive generator and adjustable transformer and outside
Interface module（e）Electrical connection.
2. a kind of distribution network electric energy quality abatement equipment controller according to claim 1, which is characterized in that described is outer
Portion's interface module（e）Including signal input interface（6）, signal output interface（5）And power interface（8）, the described signal input
Interface（6）With state acquisition circuit（c）Electrical connection, the signal output interface（5）With system, control circuit（b）Electrical connection,
The power interface（8）With power module（d）Electrical connection.
3. a kind of distribution network electric energy quality abatement equipment controller according to claim 2, which is characterized in that described touches
Control plate interactive module（a）For touch panel（2）.
4. a kind of distribution network electric energy quality abatement equipment controller according to claim 3, which is characterized in that further include shell
Body（1）, the Trackpad interactive module（a）, system, control circuit（b）, state acquisition circuit（c）And power module（d）
If shell（1）Interior, described shell（1）Front end is provided with touch panel（2）, power switch（3）And reset key（4）, described
Shell（1）Rear end is provided with power interface（8）, signal input interface（6）And signal output interface（5）And USB interface（7）.
5. a kind of distribution network electric energy quality abatement equipment controller according to claim 4, which is characterized in that the shell
Body（1）Top is equipped with radiating groove.
6. a kind of distribution network electric energy quality abatement equipment controller according to claim 4, which is characterized in that the shell
Body（1）Bottom is equipped with sliding slot guide rail.
7. a kind of distribution network electric energy quality abatement equipment controller according to claim 4, which is characterized in that the letter
Number input interface（6）Including three-phase current input port, three-phase voltage input port and spare mouth and mutually insulated and shape size phase
Together.
8. a kind of control method of distribution network electric energy quality abatement equipment, which is characterized in that include the following steps：
S1：Critical point electric current I, voltage U are measured, critical point reactive power Q is calculated；
S2：Judge whether voltage U is more than upper voltage limit UH, if it is not, S3 is then entered step, if so, whether judging reactive power Q
Less than reactive power upper limit QH, if it is not, then adjustable transformer upshift is depressurized to voltage qualification；If adjustable transformer tap gear
Highest shelves have been adjusted to, and voltage still gets over upper limit UH, then capacitance is cut by force；If voltage still gets over upper limit U at this timeH, SVG no longer carries out idle
Compensation, if so, adjustable transformer upshift is depressurized to voltage qualification, if adjustable transformer tap gear has been adjusted to highest shelves,
And voltage still gets over upper limit UH, then capacitance is cut by force；If voltage still gets over upper limit U at this timeH, SVG no longer carries out reactive-load compensation；
S3：Judge whether voltage U is less than lower voltage limit UL, if it is not, S4 is then entered step, if so, whether judging reactive power Q
More than reactive power upper limit QH, if so, SVG first carries out reactive-load compensation, if critical point reactive power still gets over the upper limit, put into parallel connection
Capacitor group keeps reactive power qualified；If voltage is still below lower limit at this time, adjustable transformer downshift boosts to voltage qualification, if
No, then adjustable transformer downshift boosts to voltage qualification, if tap gear has been adjusted to deep low gear, and voltage is still below lower limit,
SVG carries out reactive-load compensation and supports voltage, if voltage still gets over lower limit, puts into shunt capacitor group by force；
S4：Judge whether reactive power Q is more than reactive power upper limit QH, if so, SVG carries out reactive-load compensation, if still there are nothings
Work(vacancy, then capacitor automatically engage carry out reactive-load compensation；If it is not, then entering step S5；
S5：Judge whether reactive power Q is less than reactive power lower limit QL, if so, SVG stop carry out reactive-load compensation, if at this time without
Work(power still gets over lower limit, then cuts off shunt capacitor group；If it is not, being then not necessarily to pressure regulation, it is switched to bypass condition automatically.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810378986.4A CN108365613A (en) | 2018-04-25 | 2018-04-25 | A kind of distribution network electric energy quality abatement equipment controller and its control method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810378986.4A CN108365613A (en) | 2018-04-25 | 2018-04-25 | A kind of distribution network electric energy quality abatement equipment controller and its control method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108365613A true CN108365613A (en) | 2018-08-03 |
Family
ID=63009079
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|---|---|---|---|
| CN201810378986.4A Pending CN108365613A (en) | 2018-04-25 | 2018-04-25 | A kind of distribution network electric energy quality abatement equipment controller and its control method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113013891A (en) * | 2021-04-29 | 2021-06-22 | 国网山东省电力公司安丘市供电公司 | Transformer area reactive power compensation system and method |
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